Improvement in riles jfzr



TxA/.HMUSLEM METAL SCBEW- Puis? PATENTM Nov i187() m65 u F161 HG2.

www Essiel anni ditte 'THOMAS W. II. MOSELEY, OF BOSTON, MASSACHUSETTS.

Letters retenu Ne.' 108,814, aerea November 1, v1870.

IMPROVEMENT IN PILES ,52B ENGINEERING PURPOSES.

The Schedule referred to In. these Letters Patent and rnaking part of the same.

I, THOMAS W. H. Mosntnr, of Boston, Ain the State of Massachusetts, have invented certain new a'd useful Improven'ients in Piles'forEngiueering Purposes, of which the followingis a specilication.

,Naturc l( mcl Objects of the I irren-tion.

The firstpart of myinvention 'consistsin' the combination of a hollow screw-pile, a sub-pile, adapted to be passed down through the said hollow pile, and a concrete filling to receive `the upward pressure oi' the sub-pile, as hereinafter described.

-able point oi' peculiar construction, .adapted to remore obstructions by a rotzi-y morcment,-as hereinafter explained.

, Description of the fltfcolilplzliy'iilg Drawing. Figure 1 shows in elevation a hollow pile'with sol# id conical point, surrounded by a scrcwilange.

Figure 2 is an elevation of a hollow metallic pile with a hollow screw-point and a removable point or pilot applied to its extremity. p

Figure 3 represents a'longitudinal section of a simlar pile, without the pilot.

Figure 4 is ancleration oi" the same. v l y Figure 5 represents a longitudinal sect-ion of a pile with a larger aperture at its extremity to adapt it for a different character oi soil.

Figure 6 is an elevation of the same. Figure 7 rcpresehts a longitudinal section thereof, showing in elevation a wooden pile passed through the hollow metallic pile.

Figure 8 represents a longitudinal section of a pilel constructed without taper at its cud'.

Figure 9 is an elevation of the same. Figure' 10 represents a longitudinal section oi a smilar'pile with a wooden pile projected through its lower end, and the hollow metallic shell filled with concrete.

Figure 11 is an elevation ol' a pile similar to that represented in figs. 8 .l, and 10, but with the ukes or.

scrcw-anges omitted att-he extreme end, so that the cylindrical end will constitute a guidev below the flulccs. y

Figure 12 represents, in elevation, a set of piles in position, framed together and constituting the side of a pier.

.lligure 13 is au elevation, on a larger scale, of the pilot vor reruorable point, the. shank thereof being, shown in section. n

Figure 14 is a top-riew of the same.

In all the figures like letters of ,reference indicate correspondingparts. l

General Description- My-inrention is applied or embodied under four 'or more modilications, allinvolringr the same principles but varying to suit the character or conditionV of the ground in which they are to be used.

All are generally of cast-ironand hollow, varying in caliber from eightinches to six or more feet, andin thickness ci' shell from one-half' inch to two inches or more. `Theyare usually' made in sections A A A, from twelveto sixteen feet in length, with iianges, a a., at theends for the purpose ofuniting two or more sections, as the depth may rendcrnecessary.

three inches to two feet, and in pitch as the nature of flanges usually extend for a-distance of eight feet from the lower end-of the pile, though insonie eases used.

A base, B, extends aroundrtfhe pile above the screw-flanges, having a horizontalovidth equal to about the diameter of the pile'. This basc,and its strengthening braces or backets C C, to resist the downward pressure, are cast in one piece with the pile.

For hard, co'mpact ground, whichA will aiio'rd at 'once a good hold for the screw-flanges and' an adequate vsupport fertile iron pile and its burden without the use of a supplemental or sub-pileliereinafter describe. ed, I employ a solid gimlet-point, A', iig. 1, with the screw-flanges F cast upon it.

In the other forms of the pile the hollow extends from end to end., e

&c., which is compact and tough, but not so hard as that for which the pile shown in tig. 1 is required. It differs but slightly in external form from that shown in fig. 1, but is made hollow throughout with a small orifice, o, at its lower end. The tough clay and soil passing through this orifice as the pile is turnedgire space for the point to descend and allow the ilukcs or angcs I to talco hold of the walls of the clay.

W here the ground contains many obstructions of suoli acharactcr as to tend to deflect the screw from its proper course and interfere with the action oi' 'the dukes F, I apply a separate spear-shaped point, P.

Near the point orl'wer'h'd oi` the irstsection-are Y ilukcs or screw-flanges, F F, varying in width from the ground may require. lThe spiral flulres or scrcwmuch longer and in other'cases shorter'serews may be The pile shown in figs 2, 3, and 4 is used in clay, V

,calleiha pilot, and represented on a larger scale in figs.

13 and 14. s

This pilotis constructedV with lugs, p 1), through wnich'it receives the rote i] motion imparted l-tol the pileA to screw it into thcerth, and with a .hollow shank, Q, about twelve inches long, which fits within the orifice o, and which receives within it a center-pin or shaft, which I eniployfor findingthe exact position that'ihe' pile is to occupy beneaththc water.. 4

In practice, 'the pilot I is passeddown first separat-elyfrom the pile,'on the point lof the center-pin to its correct position in the clay and there deposited. The'pile is then seutdown by the aid of, and over the .center-pin, until 4the orifice Vo in, its lower'end "passes over the handle or shank Q of the pilot,.aud`

the lugs ,p p fitting in notches or recesses prepared for' them in `the end of thepile, form a clutch by which the pilot is turned when the pile revolves. This pilot is used in soil thathas small stones, leaves, sticks, shells, and other obstructions, which would otherwise fnultl ebrilice of the pile and interfere with its passage downward. y For clay, gravel, or other soil not compact enough to require thc pointed end shown in iigs. 1, 2, or 3, and which is to carrya lighter burden, yet requiring a sure. foundation, I form the end, and the orifice of therein,about halt` thcmain diameter and caliber of' the pile, as shown in igs. 5, 6, and 7. Alter this 'pile it screwed or dnven home the soil is taken ont of the inside to near itslower end,and=a, wooden pile, G, figg', oi' suiiicicnt length, sont down through it toaolid bottoni, either steile or hard'pa'n.

Figs.f 8, 9, and' l0 lrepresenta formof pile similar to. that last described, except that ithasno taper at its screw-end, but is uniform in internal and .external diameter. n

'This pile is used in softer clay 'than either o the others and 'where heavier burdens are to he borne, andthe harfd bottom is at-a greater depth thus necessitating al-.trger and longer wooden pile G. d

The wooden pile, in eithercase, is wellbanded with iron at bothits lower and upper ends, and when it is ot smaller diameter than the nteriolzo'f the pile Aits "upper end should be; guided as shown at' fig. 7. and

when it is driven to its proper position a c.4 -iron plate is piaceri upon its head inside ofthe .hollow pile, and upon this head is deposited-cement wth clean sand o r concrete,which in timefh'conres as hard and compact as stone.

'lhe pile is filled within sonic threor four inches of its top, and a cast-head, H, with a coping-Harige, h, is @tion to the concrete, and a gum gasket on top of the cast pile. beneath the cping-iiange h.. Upon this east-head thefhurden` or weight rests, thus dividing,

The pile represented in iigdt is similar in form and dimensions throughout to that shown in figs. 8, 9, and Il), but its fluke-s or sereiv-iianges E do not go .down tothebottom ot' the pile. The object in this gisthatina-1oose shiltingsoiluch'as mud or sand, the pileimay'have-a guide below the dukes or screwilanges. f By first .removing thesoil from inside of this pile to its lower end the 'mile-is allowed to sinkdown vinto the cavity thus -made, the walls of which, surrounding vthe pile, prevent the foot of the 'latter mov- 'ing'one way or the other out of its proper position. .The piles are all set in their exact places and driren down h ymachinery of my own peculiar construetion vfor this purpose alone. Y

The `cement-fillinganswers several .valuable pur-V posesf 4 First, it isthc body on which the burden may most-- I yrest' y Secoiid, it gives weight and strength to the metal pile; and

Third, it preserves the nieta-l froin corrosion or ox'.- idization.

Fig. 12 shows a set of piles representing a pier in the stream, driven home with their adjuncts, the wooden piles sont to foundation, andxhraced, and, capped readyl for use.

I do nt claim the cap H as any part of theinven- .tion' covered by this application, because it is descrilr ed and claimed. inl au application previously filed byv me.

Claims.

I claim as my invention- 1. The hollow metallic pile, provided with spiral dukes oriianges for carrying.;` it into the' soil, in com# hination with an interior sub-pile passed downward through the hollow screw-pile, and with a concrete filling, substantially as set forth. 2. The combination ofthe hollow screw-pile A, the sub-pile G," and the concrete-filling S, when arranged as herein' represented and described, so that the concrete S will llthe bore of the hollow pile, rest on the top of the sub-pile, and sustain the pressure thereof.

3. The pilot P, having a socket, Q, for the rception of .a center-pin, and lugs by which it is turned by the screw-pile when the latter reaches it, substantial- .ly as described. 

